diff --git a/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/PerlClientCodegen.java b/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/PerlClientCodegen.java
index 421c72f80d6..0a9733ed94e 100644
--- a/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/PerlClientCodegen.java
+++ b/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/PerlClientCodegen.java
@@ -14,6 +14,7 @@ import io.swagger.models.properties.Property;
 import java.io.File;
 import java.util.Arrays;
 import java.util.HashSet;
+import java.util.regex.Matcher;
 
 import org.apache.commons.lang.StringUtils;
 
@@ -21,7 +22,7 @@ public class PerlClientCodegen extends DefaultCodegen implements CodegenConfig {
     public static final String MODULE_NAME = "moduleName";
     public static final String MODULE_VERSION = "moduleVersion";
     protected String moduleName = "WWW::SwaggerClient";
-    protected String modulePathPart = moduleName.replaceAll("::",String.valueOf(File.separatorChar));
+    protected String modulePathPart = moduleName.replaceAll("::", Matcher.quoteReplacement(File.separator));
     protected String moduleVersion = "1.0.0";
 
     public PerlClientCodegen() {
diff --git a/samples/client/petstore/perl/README.md b/samples/client/petstore/perl/README.md
index 576fadf5900..164ece7a326 100644
--- a/samples/client/petstore/perl/README.md
+++ b/samples/client/petstore/perl/README.md
@@ -8,7 +8,7 @@ WWW::SwaggerClient::Role - a Moose role for the Swagger Petstore
 
 Automatically generated by the Perl Swagger Codegen project: 
 
-- Build date: 2016-01-04T20:36:07.450-08:00
+- Build date: 2016-01-15T15:46:17.239+08:00
 - Build package: class io.swagger.codegen.languages.PerlClientCodegen
 - Codegen version: 
 
@@ -162,7 +162,7 @@ you could also call them on class names.
 
 See the homepage `https://github.com/swagger-api/swagger-codegen` for full details. 
 But briefly, clone the git repository, build the codegen codebase, set up your build 
-config file, then run the API build script. You will need git, Java 7 and Apache 
+config file, then run the API build script. You will need git, Java 7 or 8 and Apache
 maven 3.0.3 or better already installed.
 
 The config file should specify the project name for the generated library: 
diff --git a/samples/client/petstore/perl/lib/WWW/SwaggerClient/ApiClient.pm b/samples/client/petstore/perl/lib/WWW/SwaggerClient/ApiClient.pm
index cf596a9918d..fb3ffe6a2e2 100644
--- a/samples/client/petstore/perl/lib/WWW/SwaggerClient/ApiClient.pm
+++ b/samples/client/petstore/perl/lib/WWW/SwaggerClient/ApiClient.pm
@@ -319,12 +319,6 @@ sub update_params_for_auth {
         if (!defined($auth)) {
             # TODO show warning about auth setting not defined
         }
-        elsif ($auth eq 'petstore_auth') {
-            
-            if ($WWW::SwaggerClient::Configuration::access_token) {
-                $header_params->{'Authorization'} = 'Bearer ' . $WWW::SwaggerClient::Configuration::access_token;
-            }
-        }
         elsif ($auth eq 'api_key') {
             
             my $api_key = $self->get_api_key_with_prefix('api_key');
@@ -332,6 +326,12 @@ sub update_params_for_auth {
                 $header_params->{'api_key'} = $api_key;
             }
         }
+        elsif ($auth eq 'petstore_auth') {
+            
+            if ($WWW::SwaggerClient::Configuration::access_token) {
+                $header_params->{'Authorization'} = 'Bearer ' . $WWW::SwaggerClient::Configuration::access_token;
+            }
+        }
         
         else {
        	    # TODO show warning about security definition not found
diff --git a/samples/client/petstore/perl/lib/WWW/SwaggerClient/PetApi.pm b/samples/client/petstore/perl/lib/WWW/SwaggerClient/PetApi.pm
index e6182c4e952..5caa831de85 100644
--- a/samples/client/petstore/perl/lib/WWW/SwaggerClient/PetApi.pm
+++ b/samples/client/petstore/perl/lib/WWW/SwaggerClient/PetApi.pm
@@ -662,5 +662,145 @@ sub upload_file {
     
 }
 
+#
+# get_pet_by_id_with_byte_array
+#
+# Fake endpoint to test byte array return by 'Find pet by ID'
+# 
+# @param int $pet_id ID of pet that needs to be fetched (required)
+{
+    my $params = {
+    'pet_id' => {
+        data_type => 'int',
+        description => 'ID of pet that needs to be fetched',
+        required => '1',
+    },
+    };
+    __PACKAGE__->method_documentation->{ get_pet_by_id_with_byte_array } = { 
+    	summary => 'Fake endpoint to test byte array return by 'Find pet by ID'',
+        params => $params,
+        returns => 'binary',
+        };
+}
+# @return binary
+#
+sub get_pet_by_id_with_byte_array {
+    my ($self, %args) = @_;
+
+    
+    # verify the required parameter 'pet_id' is set
+    unless (exists $args{'pet_id'}) {
+      croak("Missing the required parameter 'pet_id' when calling get_pet_by_id_with_byte_array");
+    }
+    
+
+    # parse inputs
+    my $_resource_path = '/pet/{petId}?testing_byte_array=true';
+    $_resource_path =~ s/{format}/json/; # default format to json
+
+    my $_method = 'GET';
+    my $query_params = {};
+    my $header_params = {};
+    my $form_params = {};
+
+    # 'Accept' and 'Content-Type' header
+    my $_header_accept = $self->{api_client}->select_header_accept('application/json', 'application/xml');
+    if ($_header_accept) {
+        $header_params->{'Accept'} = $_header_accept;
+    }
+    $header_params->{'Content-Type'} = $self->{api_client}->select_header_content_type();
+
+    
+    
+    # path params
+    if ( exists $args{'pet_id'}) {
+        my $_base_variable = "{" . "petId" . "}";
+        my $_base_value = $self->{api_client}->to_path_value($args{'pet_id'});
+        $_resource_path =~ s/$_base_variable/$_base_value/g;
+    }
+    
+    my $_body_data;
+    
+
+    # authentication setting, if any
+    my $auth_settings = [qw(api_key )];
+
+    # make the API Call
+    my $response = $self->{api_client}->call_api($_resource_path, $_method,
+                                           $query_params, $form_params,
+                                           $header_params, $_body_data, $auth_settings);
+    if (!$response) {
+        return;
+    }
+    my $_response_object = $self->{api_client}->deserialize('binary', $response);
+    return $_response_object;
+    
+}
+
+#
+# add_pet_using_byte_array
+#
+# Fake endpoint to test byte array in body parameter for adding a new pet to the store
+# 
+# @param binary $body Pet object in the form of byte array (optional)
+{
+    my $params = {
+    'body' => {
+        data_type => 'binary',
+        description => 'Pet object in the form of byte array',
+        required => '0',
+    },
+    };
+    __PACKAGE__->method_documentation->{ add_pet_using_byte_array } = { 
+    	summary => 'Fake endpoint to test byte array in body parameter for adding a new pet to the store',
+        params => $params,
+        returns => undef,
+        };
+}
+# @return void
+#
+sub add_pet_using_byte_array {
+    my ($self, %args) = @_;
+
+    
+
+    # parse inputs
+    my $_resource_path = '/pet?testing_byte_array=true';
+    $_resource_path =~ s/{format}/json/; # default format to json
+
+    my $_method = 'POST';
+    my $query_params = {};
+    my $header_params = {};
+    my $form_params = {};
+
+    # 'Accept' and 'Content-Type' header
+    my $_header_accept = $self->{api_client}->select_header_accept('application/json', 'application/xml');
+    if ($_header_accept) {
+        $header_params->{'Accept'} = $_header_accept;
+    }
+    $header_params->{'Content-Type'} = $self->{api_client}->select_header_content_type('application/json', 'application/xml');
+
+    
+    
+    
+    
+    my $_body_data;
+    # body params
+    if ( exists $args{'body'}) {
+        $_body_data = $args{'body'};
+    }
+
+    # authentication setting, if any
+    my $auth_settings = [qw(petstore_auth )];
+
+    # make the API Call
+    
+    $self->{api_client}->call_api($_resource_path, $_method,
+                                           $query_params, $form_params,
+                                           $header_params, $_body_data, $auth_settings);
+    return;
+    
+}
+
 
 1;
diff --git a/samples/client/petstore/perl/lib/WWW/SwaggerClient/Role.pm b/samples/client/petstore/perl/lib/WWW/SwaggerClient/Role.pm
index 8ad294d399d..dfe63f817fa 100644
--- a/samples/client/petstore/perl/lib/WWW/SwaggerClient/Role.pm
+++ b/samples/client/petstore/perl/lib/WWW/SwaggerClient/Role.pm
@@ -37,7 +37,7 @@ has version_info => ( is => 'ro',
                       default => sub { {
                           app_name => 'Swagger Petstore',
                           app_version => '1.0.0',
-                          generated_date => '2016-01-04T20:36:07.450-08:00',
+                          generated_date => '2016-01-15T15:46:17.239+08:00',
                           generator_class => 'class io.swagger.codegen.languages.PerlClientCodegen',
                       } },
                       documentation => 'Information about the application version and the codegen codebase version'
@@ -103,7 +103,7 @@ Automatically generated by the Perl Swagger Codegen project:
 
 =over 4 
 
-=item Build date: 2016-01-04T20:36:07.450-08:00
+=item Build date: 2016-01-15T15:46:17.239+08:00
 
 =item Build package: class io.swagger.codegen.languages.PerlClientCodegen
 
@@ -264,7 +264,7 @@ you could also call them on class names.
 
 See the homepage C<https://github.com/swagger-api/swagger-codegen> for full details. 
 But briefly, clone the git repository, build the codegen codebase, set up your build 
-config file, then run the API build script. You will need git, Java 7 and Apache 
+config file, then run the API build script. You will need git, Java 7 or 8 and Apache
 maven 3.0.3 or better already installed.
 
 The config file should specify the project name for the generated library: